HJC RPHA 91 Safety Rating Explained

Searching for the HJC RPHA 91's safety rating? Here's the short version: it carries ECE 22.06 with P/J homologation and an independent 4/5 SHARP score — a genuinely strong résumé for a modular, and one that out-certifies several pricier flip-ups in the US market. This page unpacks what each part means.

We don't crash-test helmets; we read and explain the published certifications and independent results, sourced at the foot of the page. For the full buyer's picture, see our HJC RPHA 91 review.

ECE 22.06: the current standard

The RPHA 91 holds genuine ECE 22.06 — the current global standard, independently type-tested, and the first to add a rotational (oblique) impact test plus testing of modular flip mechanisms. That last part matters for a flip-up: 22.06 was the first standard to specifically test the modular mechanism, so a 22.06 modular has had its chin-bar hinge assessed, not just its shell.

The P/J mark: approved to ride open

This is the modular-specific part, and it's important. Under ECE, P means the helmet passed the impact test with the chin bar closed, and J means it also passed open. Only a helmet marked P/J is actually approved to be ridden with the chin bar up — a lot of flip-ups are homologated for closed use only, and riding those open is an untested configuration. The RPHA 91 carries P/J, so flipping it up at a light or a gas station is a tested, approved state, not a gamble.

The 4/5 SHARP score

On top of the homologation, the RPHA 91 has an independent SHARP rating of 4 out of 5. SHARP is the UK government's programme that buys helmets off the shelf and impact-tests them, publishing a 1-to-5-star result — so it's genuinely independent data, not a manufacturer claim. Four stars on a modular is a strong result; the flip-up format adds a hinge and a seam that a one-piece shell doesn't have, so a 4/5 SHARP modular is performing well for its type.

Why it out-certifies pricier flip-ups

Here's the part that surprises buyers. The US version of the flagship Shoei Neotec 3 — which costs roughly double — is a DOT build; the ECE 22.06 P/J, 5/5 SHARP Neotec is the European unit, not the one sold in the States. So in the US market, the value RPHA 91 holds the current standard and an independent score that the pricier Neotec 3 doesn't, on the helmets you actually buy. That's the whole argument of our Neotec 3 vs RPHA 91comparison, and it's why the RPHA 91 is our top modular pick.

How a 4/5 modular compares to a full-face

It's worth putting the RPHA 91's 4/5 in context, because modulars and full-face helmets aren't judged on quite the same curve. A flip-up has a chin-bar hinge and a seam that a one-piece shell doesn't, which is inherently harder to make as strong as a fixed chin bar — so a 4/5 SHARP on a modular is a strong result for the format, and reflects a well-engineered mechanism. The very best one-piece full-face helmets (like the AGV K6 S) reach 5/5, but they don't have to solve the flip-up problem. If you specifically want the convenience of a modular, the RPHA 91's combination of ECE 22.06, P/J and an independent 4/5 is about as reassuring as the format gets — and unusually so at its price.

Also worth knowing: ECE 22.06 was the first standard to specifically test the modular flip mechanism, so a 22.06 modular like the RPHA 91 has had its hinge assessed as part of homologation, not just its shell. That's a meaningful reassurance the older 22.05 standard didn't provide, and another reason the current certification matters on a flip-up.

The bottom line

The HJC RPHA 91's safety rating is genuinely strong for a modular and exceptional for its price: ECE 22.06 with P/J (approved to ride open) and an independent 4/5 SHARP score. Fit it correctly — a modular a half-size too big undermines any rating — and it's one of the best-certified flip-ups you can buy for the money. Full buyer's review here.